RT Journal Article SR Electronic T1 Collecting and exploiting data to understand a nation’s sexual health needs: Implications for the British National Surveys of Sexual Attitudes and Lifestyles (Natsal) JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 159 OP 161 DO 10.1136/sextrans-2018-053571 VO 95 IS 3 A1 Mercer, Catherine H A1 Clifton, Soazig A1 Prior, Gillian A1 Aldridge, Robert W A1 Bonell, Chris A1 Copas, Andrew J A1 Field, Nigel A1 Gibbs, Jo A1 Macdowall, Wendy A1 Mitchell, Kirstin R A1 Tanton, Clare A1 Thomson, Nick A1 Unemo, Magnus A1 Sonnenberg, Pam YR 2019 UL http://sti.bmj.com/content/95/3/159.abstract AB